step_ahead,prediction
1,36.26127
2,36.469563
3,36.035275
4,36.60834
5,36.449184
6,36.592995
7,36.528873
8,36.743546
9,36.422237
10,36.984554
11,36.547523
12,36.61103
13,36.52917
14,37.198864
15,36.995373